<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<style>
		p.test {
			width:11em;
			border:1px solid #000000;
			word-wrap:break-word;
		}
		</style>
	</head>
	<body>
		<p class="test">这是一个非常长的单词: thisisaveryveryveryveryveryverylongword. 这个长单词会换行.</p>
	</body>
</html>